"One of the key factors to capturing the realism of a sport is accurately replicating the movements of the athletes, which in Prizefighter's case means mimicking the fighting styles of 40 famous boxers including Kelly Pavlik, Julio Caesar Chavez, Jr. and legends (who you can unlock throughout the course of the game) such as Rocky Marciano, Joe Louis, Chris Eubank and Nigel Benn. By working with former WBO World Cruiserweight champion Enzo Maccarinelli to motion capture hours of footage, Seymour is confident that Venom has managed to achieve this lofty goal. "We've worked with Enzo before on Rocky and Rocky Legends," he explains. "Enzo is terrific at mimicking other fighting styles. For the few moves, falls and styles he can't mimic we've used the animator to fill in the gaps."

They're fine. I actually prefer an always connected experience.
I'd really prefer an offline way to play, but its not a bother.
I don't really like them, and am more reluctant to buy a game because of it.
I won't buy them. I want my games offline.